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9-Undecenoic acid, methyl ester

CAS 5760-50-9

Concern score

Not assessed — no hazard data yet.

9-Undecenoic acid, methyl ester in plain language

What it is

Also known as METHYL-9-UNDECENOATE · Methyl 9-UNDECENOATE · Methyl undec-9-enoate · Methyl 9-undecylenate · methyl undecylenate

What it does

Used in consumer products as a fragrance ingredient and a flavouring.

  • Fragrance
  • Flavouring
Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. 9-Undecenoic acid, methyl ester appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • USEPAcommercial use observedEPA CPDat observed this chemical in 2 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient, Fragrance.
    • EPA CPDat observed this chemical in 2 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient, Fragrance.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as mixture.
    • openFDA substance registry classifies this ingredient as mixture.Source →

Expert safety opinions

No expert opinion on file for 9-Undecenoic acid, methyl ester. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for 9-Undecenoic acid, methyl ester yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

4 data sources

Where this comes from

  • EPA Chemical and Products Database

    exposure · updated July 2013

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Not a strong fit for fragrance avoidance because it carries Fragrance.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Where it has been recorded

How often EPA CPDat has listed 9-Undecenoic acid, methyl ester in a product composition. These are source records, not Greenveil catalog products.

Source records

2

Named organisations

6

Personal care

Typical roles

FragranceFlavouring
See products using 9-Undecenoic acid, methyl ester →